Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Canada - Postage Due stamps

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Start price: $100

Buyer's premium:

1935, Numerals, 4th issue, 10c dark violet, bottom margin horizontal imperforate pair, full OG, NH, VF, C.v. $325, Unitrade C.v. CAD $450,Scott #J20a